#!/usr/bin/env bash
# OMNL Fineract — Create clients 9–15 (FIDIS, Alpha Omega Holdings, …) via POST /clients.
# Idempotent: skips if a client with the same externalId already exists.
# Usage: run from repo root; sources omnl-fineract/.env or .env.
#   ENTITY_DATA=<path>  JSON entity data (default: docs/04-configuration/mifos-omnl-central-bank/OMNL_ENTITY_MASTER_DATA.json)
#   DRY_RUN=1           print payloads only, do not POST.
# Requires: curl, jq.

set -euo pipefail
REPO_ROOT="${REPO_ROOT:-$(cd "$(dirname "${BASH_SOURCE[0]}")/../.." && pwd)}"
DRY_RUN="${DRY_RUN:-0}"
ENTITY_DATA="${ENTITY_DATA:-${REPO_ROOT}/docs/04-configuration/mifos-omnl-central-bank/OMNL_ENTITY_MASTER_DATA.json}"

if [ ! -f "$ENTITY_DATA" ]; then
  echo "Entity data file not found: $ENTITY_DATA" >&2
  exit 1
fi

if [ -f "${REPO_ROOT}/omnl-fineract/.env" ]; then
  set +u
  source "${REPO_ROOT}/omnl-fineract/.env" 2>/dev/null || true
  set -u
elif [ -f "${REPO_ROOT}/.env" ]; then
  set +u
  source "${REPO_ROOT}/.env" 2>/dev/null || true
  set -u
fi

BASE_URL="${OMNL_FINERACT_BASE_URL:-}"
TENANT="${OMNL_FINERACT_TENANT:-omnl}"
USER="${OMNL_FINERACT_USER:-app.omnl}"
PASS="${OMNL_FINERACT_PASSWORD:-}"
OFFICE_ID="${OFFICE_ID:-1}"
# legalFormId from GET /clients/template: 1=Person, 2=Entity
LEGAL_FORM_ID="${LEGAL_FORM_ID:-2}"

if [ -z "$BASE_URL" ] || [ -z "$PASS" ]; then
  echo "Set OMNL_FINERACT_BASE_URL and OMNL_FINERACT_PASSWORD (e.g. in omnl-fineract/.env)" >&2
  exit 1
fi

CURL_OPTS=(-s -S -H "Fineract-Platform-TenantId: ${TENANT}" -H "Content-Type: application/json" -u "${USER}:${PASS}")
SUBMITTED_DATE="${SUBMITTED_DATE:-$(date +%Y-%m-%d)}"

# Return client id if a client with this externalId exists, else empty
get_client_id_by_external_id() {
  local ext_id="$1"
  local clients_json="$2"
  if echo "$clients_json" | jq -e '.pageItems' >/dev/null 2>&1; then
    echo "$clients_json" | jq -r --arg e "$ext_id" '.pageItems[] | select(.externalId == $e) | .id'
  else
    echo "$clients_json" | jq -r --arg e "$ext_id" '.[] | select(.externalId == $e) | .id'
  fi
}

clients_json=$(curl "${CURL_OPTS[@]}" "${BASE_URL}/clients")
if ! echo "$clients_json" | jq -e '.pageItems // .' >/dev/null 2>&1; then
  echo "Unexpected clients response." >&2
  exit 1
fi

created=0
skipped=0
for client_num in 9 10 11 12 13 14 15; do
  entity=$(jq -c ".entities[] | select(.clientNumber == $client_num)" "$ENTITY_DATA")
  if [ -z "$entity" ]; then
    echo "Skip: no entity with clientNumber=$client_num in $ENTITY_DATA" >&2
    continue
  fi
  entity_name=$(echo "$entity" | jq -r '.entityName')
  account_no=$(echo "$entity" | jq -r '.accountNo')
  ext_id="OMNL-${client_num}"

  existing=$(get_client_id_by_external_id "$ext_id" "$clients_json")
  if [ -n "$existing" ] && [ "$existing" != "null" ]; then
    echo "Skip client $client_num: already exists (externalId=$ext_id, id=$existing)" >&2
    ((skipped++)) || true
    continue
  fi

  payload=$(jq -n \
    --argjson officeId "$OFFICE_ID" \
    --argjson legalFormId "$LEGAL_FORM_ID" \
    --arg firstname "$entity_name" \
    --arg externalId "$ext_id" \
    --arg submittedOnDate "$SUBMITTED_DATE" \
    '{
      officeId: $officeId,
      legalFormId: $legalFormId,
      firstname: $firstname,
      lastname: ".",
      externalId: $externalId,
      dateFormat: "yyyy-MM-dd",
      locale: "en",
      active: false,
      submittedOnDate: $submittedOnDate
    }')

  echo "Create client $client_num: $entity_name (externalId=$ext_id)" >&2

  if [ "$DRY_RUN" = "1" ]; then
    echo "  [DRY RUN] POST clients $payload" >&2
    ((created++)) || true
    continue
  fi

  res=$(curl "${CURL_OPTS[@]}" -X POST -d "$payload" "${BASE_URL}/clients" 2>/dev/null) || true
  if echo "$res" | jq -e '.resourceId // .clientId' >/dev/null 2>&1; then
    new_id=$(echo "$res" | jq -r '.resourceId // .clientId')
    echo "  Created clientId=$new_id" >&2
    ((created++)) || true
  else
    echo "  Failed: $res" >&2
  fi
done

echo "Done: $created created, $skipped skipped (already existed)." >&2